/*
 * Copyright (c) ShaoxiongDu <Shaoxiong.dev@aliyun.com> 2021 all Rights Reserved
 */

package zh.codegym.task.task06.task0605;


import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

/* 
控制体重
*/

public class Solution {

    public static void main(String[] args) throws IOException {
        BufferedReader bis = new BufferedReader(new InputStreamReader(System.in));
        double weight = Double.parseDouble(bis.readLine());
        double height = Double.parseDouble(bis.readLine());

        Body.calculateBMI(weight, height);
    }

    public static class Body {
        public static void calculateBMI(double weight, double height) {
            // 在此编写你的代码
            double bmi = weight / (Math.pow(height, 2));
            if (bmi < 18.5) {
                System.out.println("体重不足：BMI < 18.5");
            } else if (18.5 <= bmi && bmi < 25) {
                System.out.println("体重正常：18.5 <= BMI < 25");
            } else if (25 <= bmi && bmi < 30) {
                System.out.println("超重：25 <= BMI < 30");
            } else {
                System.out.println("肥胖：BMI >= 30");
            }
        }
    }
}
